Abstract Number: 1311 • ACR Convergence 2023
T Cell Subset Signatures Predicted Clinical Response to Etanercept-biosimilar Yisaipu in Patients with Rheumatoid Arthritis
Background/Purpose: Our study aimed to use machine-learning approaches to characterize the immune cell profiles of patients who were inadequate responders to Etanercept-Biosimilar Yisaipu (Yisaipu-IRs) and…Abstract Number: 2331 • ACR Convergence 2023
Molecular Predictors of Treatment Response in Two Trials of Abatacept in Systemic Lupus Erythematosus
Background/Purpose: Abatacept (ABA) is a fusion protein that disrupts T cell co-stimulation by inhibiting interactions between CD28 and CD80/86. ABA is effective in RA, but…Abstract Number: 020 • 2023 Pediatric Rheumatology Symposium
Generation of Human Resident Memory T Cells in 3D Synovial Organoid Model
Background/Purpose: Most rheumatoid arthritis (RA) and juvenile idiopathic arthritis (JIA) patients experience episodic arthritis flares and require life-long medications to control their disease. We observed…Abstract Number: 129 • 2023 Pediatric Rheumatology Symposium
Interrogation of STAT3 Activation in Patients with Polyarticular Juvenile Arthritis (polyJIA)
Background/Purpose: A better understanding of the pathogenesis of polyJIA is necessary to guide more effective clinical care, such as the development of data-driven approaches to…Abstract Number: L03 • ACR Convergence 2022
A Phase 2 Trial of Peresolimab for Adults with Rheumatoid Arthritis
Background/Purpose: Peresolimab is a humanized immunoglobulin G1 monoclonal antibody that stimulates human programmed cell death protein 1 (PD-1). We hypothesized that peresolimab binding to PD-1,…Abstract Number: 0500 • ACR Convergence 2022
T Cell and Macrophage Synergy Drive Inflammatory Synovial Fibroblasts in Rheumatoid but Not Psoriatic Arthritis
Background/Purpose: Rheumatoid (RA) and psoriatic arthritis (PsA) are common autoimmune diseases of unknown aetiology characterised by complex synovial pathology with a detrimental effect on the…Abstract Number: 0809 • ACR Convergence 2022
Ex Vivo Comparative Immunogenicity Assessment (EVCIA) to Determine Relative Immunogenicity in Chronic Plaque Psoriasis in Participants Receiving Humira® or Undergoing Repeated Switches Between Humira and AVT02
Background/Purpose: A common reason for clinical development failure of biologic medicines is immunogenicity. Immunogenicity is traditionally measured by detecting neutralizing (NAb) anti-drug antibodies (ADA) in…Abstract Number: 1730 • ACR Convergence 2022
T Cell-Macrophage Interactions Play a Critical Role in a Mouse Model of Histidyl-tRNA Synthetase-Induced Myositis
Background/Purpose: Histidyl-tRNA synthetase (HRS) is a key target of antigen-specific B and T cell responses in the anti-synthetase syndrome. Despite a clear role for aberrant…Abstract Number: 1982 • ACR Convergence 2022
Pluripotency Marker PBX1 Predicts Treatment Effect in Rheumatoid Arthritis
Background/Purpose: Self-renewal ability, which is important for the adaptive immunity and adequate T cell function, is severely impaired in rheumatoid arthritis (RA). This leads to…Abstract Number: 0506 • ACR Convergence 2022
Immunophenotypic Categorization of Systemic Immune-mediated Diseases
Background/Purpose: Systemic immune-mediated diseases are heterogeneous, and the pathogenesis varies among and within each disease. Some studies tried to stratify patients with immune-mediated diseases into…Abstract Number: 1124 • ACR Convergence 2022
CD4+ Cytotoxic T Lymphocytes (CTL) Are Present in Sjögren’s Disease Minor Salivary Glands and Associate with Markers of Epithelial Cell Damage near Infiltrates
Background/Purpose: CD4+ T cells dominate focal lymphocytic infiltrates in Sjögren's disease (SjD), but their differentiation states have remained unclear. Here, we used single cell (sc)RNAseq…Abstract Number: 1731 • ACR Convergence 2022
Systemic Sclerosis-Associated Class II HLA Alleles Restrict the Diversity of the CDR3 and the T Cell Receptor Repertoire in African American Patients
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune, fibrotic disorder that disproportionately affects African Americans (AA). Previous work from our lab and others has suggested a…Abstract Number: 1991 • ACR Convergence 2022
Mice Do Not Develop CIA: Knocking out of Kv1.3 Renders CD4+TEMCells Resistant to Activation
Background/Purpose: Engagement of the TCR triggers Ca++ influx through Ca++ channels. Ca++ influx is only possible with a counterbalancing K+ efflux through Kv1.3 and/or KCa3.1.…Abstract Number: 0555 • ACR Convergence 2022
Heterogeneity in Origin and Function of Distinct Human Synovial-tissue Dendritic Cells in Health, Active Rheumatoid Arthritis (RA) and RA in Disease Remission
Background/Purpose: Current treatments for RA do not restore the immune tolerance characteristic of health. Dendritic cells (DC) are one of the cell types that can…Abstract Number: 1146 • ACR Convergence 2022
Genetic Interactions Between T-Cell Receptor Polymorphisms and HLA Amino Acids Contribute to the Risk of Rheumatoid Arthritis
Background/Purpose: Rheumatoid arthritis (RA) genetic susceptibility has been well studied with five amino acid positions within the HLA explaining most of the association. Although genome…
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